The Mobile River basin is the sixth largest watershed in the United States, with the fourth largest freshwater inflow, receiving drainage from almost two-thirds of Alabama and portions of Georgia, Mississippi, and Tennessee. Sitting at the southern end is the 3,113,580 acre Mobile Basin Focus Area. Portions of counties that are included in this focus area are Baldwin, Choctaw, Clarke, Escambia, Mobile, Monroe, Washington, and Wilcox. Within the focus area the Tombigbee and Alabama Rivers combine to form the Mobile River that empties into Mobile Bay. Several smaller coastal rivers also flow into the Bay. Species that may benefit from habitat restoration in this area are Alabama beach mice, red-cockaded woodpeckers, gopher tortoises, black pine snakes, eastern indigo snakes, Alabama red bellied turtles, manatees, migratory birds (shorebirds, wading birds, waterfowl, neotropical migratory songbirds, etc.) and anadromous fish (Gulf sturgeon, Alabama shad, and striped bass), as well as, submerged aquatic vegetation and oysters.